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3D Printed Westinghouse Brake Distributer & Roevac Vents

lyneux

Entry posted by lyneux

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I've had the latest prints back from Shapeways of my Westinghouse Brake distributer and Roevac vents and I'm slightly underwhelmed by them. I'm sure that I have had prints in the past where I have seen details that are 0.2mm in diameter which don't appear to have come out on these. Perhaps when they are cleaned and primed they will look better? This is the problem with Shapeways - massively variable results!

 

4mm Westinghouse Brake Distributers:

 

9402419707_a2cba35ce8_b.jpg

 

You can just about see the detail on the distributers in this photo (e.g. the star pattern on top) but screw details are lacking.

 

9402426875_c5930742de_b.jpg

 

Roe-vac vents in 4mm and 7mm:

 

9405179262_fa97ee919b_b.jpg

 

9405181186_f92793a8c1_b.jpg

 

7mm Roe-vacs:

 

9405187918_216ae78c48_b.jpg

 

PTA Wagon Underframe components (including Westinghouse brake distibuters) v0.3. This is one of the better prints, for some reason the brake distributers are much crisper on this print than the other model where 18 have been placed on a cube-shaped sprue:

 

9402424565_1084215c08_b.jpg

 

And for reference, here are renders of the 3D files:

 

blogentry-7525-0-63415600-1375224494_thumb.jpg

blogentry-7525-0-30063800-1375224541_thumb.jpg

 

None of the screw detail on the Roevacs came out in either 4mm or 7mm even though each screw in 7mm is 0.3mm wide and 0.2mm high (within the parameters for "surface detail" in FUD and therefore should come out?

 

blogentry-7525-0-57504600-1375224570_thumb.jpg

blogentry-7525-0-85985000-1375224767_thumb.jpg

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Dazzler Fan

If these are FUD from Shapeways, you are already on the margin of 0.3mm for the material.

 

Maybe with a light spray of paint, more detail will be seen.

Have you consulted them for comment?

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Pugsley

The problems with FUD seems to be related to the support material, which is probably what has caused the problem with the cubed ones vs. the others.  They should be fine on a linear sprue.

 

The 7mm Roe-Vacs should have been OK though. 

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